Photographic apparatus.



3 SHEEIS-SHEE l.

W. H. SCHWAB.

PHOTOGRAPHIC APPARATUS.v

APPLICATION FILED )AN.I5,1913.

Patented May14, 1918.

W. R. SBHWAB.

PHOTOGRAPHIC APPARATUS.

APPLICATION r|LED-JAN.|5.1913.

Patented May 14, 1918.

/z. vedfor UNITED sTATEs PATENT curi-cn.

WILLIAM R. SCHWAB, OF KANSAS CITY, MISSOURI, ASSIGNR T0 THE CAMERAGRAHCOMPANY, 0F KANSAS CITY, MISSGURI, A CORPRATION OF ARIZGNA.

PHOTOGRAPHIC AEPARATUS.

Specication of Letters Patent.

Patented May 14, 1918.

To allzu/1,0m t may concern.'

Be it known that I, WILLIAM R. SCHWAB, a citizen of the United States,yresiding at Kansas City, in the county of Jackson and State of Missouri,have invented new and useful Improvements in Photographic Apparatus, ofwhich the following is a specification. Y

This invention relates to improvements in the art of photography, andthe object thereof is to provide means whereby photographicreproductions of suitable size may be made with accuracy and facility.According to the present invention, means is provided which indicatesthe dimensions of the object and serves to center or position the sameproperly on its support, such means also indicating the necessaryadjustments of the object support and the camera lens in order to obtainreproductions of the desired size, and indicating the amounts ofsensitized material required for the reproductions of objects ofdifferent sizes.

To these and other ends, the invention consists in certain improvements,and combinations and arrangements of parts, all as will be hereinaftermore fully described, the novel features being pointed out particularlyin the claims at the end of the specili-` cation.

Figure 1 represents an object support in the form of a chart and forminga part of the present invention; l

Fig. 2 represents a card which, when used in connection with the objectsupport or chart, provides the necessary data for the photographer IF'g. 3 is a diagram showing the manner in which the data obtained by theaid of the chart and card is utilized.

Similar parts are designated by the same' reference characters in theseveral views.

The object support l consists preferably of a board or other suitable atsurface, and the object to be' reproduced, such for example as a pictureor writing or printed matter contained on a sheet, is applied to theface of the support and may be held in position thereon by any suitablemeans. 'The present invention is applicable especially to photographicapparatus of the type disclosed fully in Letters Patent, No. 929,757granted August 3, 1909, to C. J. Ellis, and the object support isadapted to be mounted ,face of the object support embodies a chart whichperforms the dual function of centerlng or positioning the objectproperly thereon and indicating the dimensions of the ob- Ject. Thischart is composed in the present instance of a series of rectangulardiagrams 2 wh1ch increase progressively in size in a direction from thecenter toward the margin of the support, the diagrams bein concentric.ndex characters 3 serve to Yistinguish the different rectangulardiagrams. Fig. 1 shows the chart as elevation, this being the position`that it occupies while in use. Series of lines 4l radiate from thecenter toward the twolateral sides of the chart, these lines beingspaced vertically at predetermined intervals and such lines serve toindicate the lengths ofsensitized material which it is necessary 'to usein making repro'ductions of dierent sizes. These lines are preferablyprovided with index numbers, as shown which designate directly and byinches the lengths of sensitized material which it is necessary to usein making reproductions of objects which cover or lill but partially oneof the rectangular diagrams on the chart. These radiating lines performthis function irrespective of the size of the object, as the verticaldistance between such lines varies in accordance with the variations inthe size of the object.

A chart of this character is adapted for use in connection, for example,with lthe ofrdinary camera or photographic apparatus which produces asilfigle image or exposes but one side of a sensitized medium. The chartshown, however, is also ladapted for use in connection with aphotographic apparatus .of the type shown and described in my priorPatent, No. 1,003,300 granted September 12, 1911, which' is capable ofeX- posing both sides of a sensitized medium or two sensitized mediumsplaced back to back, in which case onesensitized surface receives theimage from the object on the righthand side of the object support whilethe other sensitized surface receives an image from the object on theleft-hand side of the object support. For this purpose, the chart isdivided centrally to form right and lefthand sections, as shown.

The card 5 which is to be used in connection with the chart is Shown inFig. 2 and 11 0 viewed in front 4it contains tabulated data which can beobsquares, that is t'o say, the horizontal dimensions of those sectionsof the rectan lar diagrams at the right or the left si e of the centraldivision `between the chart sections.v The column 8 contains data as to'the horizontal dimensions of the complete squares or rectangulardiagrams, while the' column gular diagrams. The chart and card are to beused in connection with photographic apparatus wherein the camera lensfront 10 which is mov' able axially of thelens 11 for focusing purposesis provided with a scale 12 which indicates the various focusingpositions thereof, and the copyholder or object support is also movablein a direction in alinement with the camera lens and is provided witha'l scale 13 which designates the different positionsthereof.Preferably, the photogra hicaparatus should also embody means or feedingaper or other sensitized material to the V foca plane in measuredlengths. It is preferable to emplo a feeding and measuring device suchas t at shown and described in my prior patent, No. 1,053,068, grantedFebruary 1 1913, as a device of that character not only facilitates thefeeding of the sensitized material, but it also-measures the material ateach operation. Briefly dei scribed, the feeding and measuring deviceembodies acrank 14 which is' operatively connected to rollers whichadvance the paper or sensitized material from a roll. to the focal planeand a handle 15 serves to ad'ust the limit of `operation of the crank todi erent degrees-as may be required; This feed# ing and measuring deviceis provided with a scale 16 which contains designating numerals orcharacters which indicate the`diierent positions in which the handle 15is to be set. The card shown in Fig. 2 contains data which enables theoperator to .quickl the object support, lcamera lens, and1 the feedinand measuring device according to the di erent reproductions to .bemade, the

column 17 on the card containing data which' indicates the adjustmentfor the camera lens,

and the column 18 containin data indicating the diiferent ositions inwhich the object support is to e set. The setting of the measuringdevice depends on the vertical height of the image cast upon thesensitized material, and this data is obtained upon 9 contains data asto the vertical .be photographed is placed centrally dimensions of thevarious squares or rectan l :particular diagram, the

cate ence tothe column 6 'of the card after the object has been placedin the proper square on the chart.

For example, the object a, b (Fig. 3)' to on the copyholder or chart sothat the o ect fits over or within one of the numbered dia-- also appearthat theilens is to be set with reference to its scale 12 so as to beopposite to the-characterlO.- The column 18 ofthe focusingcard'indicates that when the object is 1n the form of asheetapplieddirectly to ,the copyholder chart 1, the co -holder is to beset at 8196 o'n its scale. en abookholder is employed, the column to theright of the column 18 of the focusing card indi-4 cates that thecopyholder is to be set at 13g on its scale. In each instance .wherekthe object-fills the space withinany diagram,

ioo

the reproduced copy will be of ythegfiillsize,

afforded by the camera.

The `radiating lines 4 are used vwhen.

objects which only partially thedia-li.

grams vertically such as checks, &c., are to be photograph or otherobject to the up er portion of the sionof which corres onds to the,horizontal dimension of the obJect, and in such a way that the objectoccupies a space between the" topline of such dia am and one of theseradiating lines, it ,wi l be seen by the operator that themeasuringdeviceis to feed so magg inches of sensitized material as isindica by'theparticular radiating line 4 with vwhich the lower. edge ofthe object registers.

For example, if the object has a horizontal dimension equal to thehorizontal `dimension of the diagram 15, and. is applied to the upperportion of this diagram so that the upper edge of the object coincideswith the topline o this diagram, and if the lower edgeof the objectregisters with the radiline designated 5, it will then be indiby thechart that a length of sensitized materi l ve inches long will bereating iscl 90 .2. .By reference to the focusing card it wi l quiredfor a reproduction of such object. The lens and copyholder will beadjusted in this instance as in the preceding instance Where the objectcompletely filled the diagrain and, hence, the exposure takes in thefull width of the sensitized material.

Of course, it will be understood that the sensitized material is fedforward the amount indicated by the chart for each object after theexposure of such object has been made. It will also be understood that,in each instance, the reproduction will take in substantially the fullwidth of the sensitized material, this being provided for by thedifferent focuses indicated by the focusing card for the lens andcopyholder, and that the radiating lines which subdivide the diagramvertically indicate the length of photographic material required foreach object, thus economizing in the amount of sensitized material.

I claim as my invention Y 1. In photographic apparatus, an objectsupport having a chart provided with diagrams for positioning an object,said diagrams being subdivided to indicate the amount of sensitizedmaterial required for the reproduction of an object.

2. In photographic apparatus, an object support provided with anobject-positioning chart embodying a series of dlagrams of graduatedsizes, and means common to and subdividing said diagrams to indicate theamount of photographic material required for the reproduction of anobject positioned with reference to the chart.

3. In photographic apparatus, an object support provided with a chartembodying a series of diagrams of graduated sizes having a common centerand having means subdividin the diagrams vertically, and means for feein sensitized materialA vertically before the chart in measured lengthsas indicated by the subdivisions of said diagrams.

4. In photographic apparatus, an objectreceiving chart embodying aseries of diagrams of graduated sizes having a common center, andradially extending lines subdiindividual index viding the diagramssymmetrically in one direction, and indicating the amount ofphotographic material required for reproduction of an object.

5. In photographic apparatus, an objectreceiving chart embodylng aseries of rectangular diagrams of graduated sizes having a common centerand divided centrally into two horizontally spaced complementalsections, and radiating lines subdividing the diagram sectionsvertically and indicating the amount of photographic material requiredfor reproduction of an object.

6. In photographic apparatus, the combination of an object-receivingchart embodying diagrams of graduated sizes and having characters, andmeans subdividing the diagrams in one direction, a lens, the lens andchart being relatively adjustable for focusing, focusing scales for thelens and chart, means for indicating the different positions to beoccupied by the lens and chart according to the diagrams of the chart,and means for feeding sensitized material in the optical field of thelens in amounts indicated by the subdividing means of the diagram.

7. In photographic apparatus, the combination of an object-receivingchart embodying diagrams of graduated sizes having a common center andhaving individual index characters, means subdividing the diagrams inone direction, a lens, and means for feeding sensitized material in theoptical field of the lens in amounts indicated by the subdividing meansof the diagrams, the lens and chart being adjustable relatively to oneanother and to said feeding means and having scales for determining theadjustments of the lens and chart according to the index characters ofthe diagrams on the chart.

In testimony whereof I have hereunto s et my hand in presence of twosubscribing witnesses.

' WILLIAM R. SCHWAB.

Witnesses A. L. PARKS, RUTH WHEELER.

